The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1907)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1908)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1909)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1910)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1911)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1912)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1913)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1914)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1915)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1906)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1916)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1917)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1918)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1921)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1694)

Photographs of medicinal and economic plants from natural specimens: plates, figures - Lochman, Charles L. (C.L. Lochman, 1898)

PHS news - Pennsylvania Horticultural Society. (The Society, 1995)

Phutobasanos siue Plantarum aliquot historia : in qua describuntur diuersi generis plantae veriores, ac magis facie viribúsque respondentes antiquorum Theophrasti, Dioscoridis, Plinij, Galeni, aliorúmque delineationibus, ab alijs hucusque non animaduersæ - Colonna, Fabio, 1567 -1650 (Ex Officina Horatij Saluiani. Neapoli, M.D.XCII. Apud Io. Iacobum Carlinum, [et] Antonium Pacem, 1592)

The physiography and geology of the coastal plain province of Virginia - Clark, William Bullock, 1860 -1917 (University of Virginia, 1912)

Physiotypia plantarum austriacarum. Der naturselbstdruck in seiner anwendung auf die gefässpflanzen des österreichischen kaiserstaates, mit besonderer berücksichtigung der nervation in der flächenorganen der pflanzen - Ettingshausen, Constantin, Freiherr von, 1826 -1897 (1856)

Physiotypia plantarum Austriacarum : die Gefässpflanzen Österrichs in Naturselbstdruck mit besonderer Berücksichtigung der Nervation in den Flächenorganen der Pflanzen - Ettingshausen, Constantin, Freiherr von, 1826 -1897 (F. Tempsky in Prag, 1873)

Phytobasanos, sive plantarvm aliqvot historia : in qva describvntvr diversi generis plantæ veriores, ac magis facie, viribúsque respondentes antiquorum Theophrasti, Dioscoridis, Plinij, Galeni, aliorúmque delineationibus, ab alijs hucusque non animaduersæ - Colonna, Fabio, 1567 -1650 (Apud Io. Iacobum Carlinum & Antonium Pacem, 1592)

Phytogeographic studies in the Peace and upper Liard river regions, Canada, with a catalogue of the vascular plants - Raup, Hugh M. (Hugh Miller), 1901 -1995 (Arnold Arboretum of Harvard university, 1934)

Phytogeographic survey of North America. A consideration of the phytogeography of the North American continent, including Mexico, Central America and the West Indies, together with the evolution of North American plant distribution - Harshberger, John W. (John William), 1869 -1929 (W. Engelmann, 1911)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1952)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1967)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1968)